Dalton’s Atomic Theory

Dalton’s Atomic Theory 

John Dalton, a British Chemists and scientists gave the Atomic Theory in 1808. This theory is popularly known as Dalton’s Atomic Theory in the honour of

John Dalton. He gave the theory on the basis of Laws of Chemical Combination and explains them properly. 

In his theory he explains about atom. Main postulates of Dalton's atomic theory 

1. Elements are made of extremely small particles called atoms. 

2. Atoms of a given element are identical in size, mass, and other properties; 

3. Atoms of different elements differ in size, mass, and other properties. 

4. Atoms cannot be subdivided, created, or destroyed. 

5. Atoms of different elements combine in simple whole-number ratios to form chemical compounds. 

6. In chemical reactions, atoms are combined, separated, or rearranged.